Which is best? 4 or 6 port for peripheral porting??
 

U am trying to see what would be the best route a 4 or 6 port motor for a peripheral set up? The rotors are s5. This also will be for an efi lt10 single turbo set up.Thanks!

A p-port puts the port on the rotor housing, so I don't think you end up using the ports on the irons.

I would use which ever motor has the smallest ports on the side housings. Which is probably an NA centre, and and turbo end plates.

I am going to use a stock 6 port for the peripheral. Ihave some issues with my 4 port due to a bad pinning job. Ihope to get some good results?:dunno:

im doing the same i have a TII S4 and a S5 TII

S4 irons wont last that long running a turbo Pport,the casting is not very strong like in newer motors,the middle iron on the NA is not desing for power at all,look at the bottom tension bolt(right side)it does not even go trhu the iron like in new motors giving you a block that will flex under high boost and torque,the casting on the front and rear iron are weak 2 plus you dont have a oil feeding line for the turbo,i cracked series 5 with the thickest casting on boost only(pinned motors and with PICA MOTORSPORST STUDS)now imaging what damage can you do with a inferior block,S4 TURBO ROTORS are the way to go(stronger casting)with 3 window bearings,ecentric shaft high flow jets,adjustable oil regulators and a high flow S5 turbo oil pump to keep the oil moving.